Custom Fasteners

Custom Fasteners – Engineered to Fit Your Exact Needs

Category: Engineered Fasteners / OEM Components
Type: Tailor-Made Bolts, Screws, Studs, Inserts, Washers, Pins, Clamps, Anchors
Materials: Mild Steel, Stainless Steel (304/316), Alloy Steel, Brass, Titanium, Plastic, Nylon
Standards: DIN, ISO, ASTM, JIS, BS, or Drawings (Customer Specified)
Production Batch: From prototypes to mass production (MOQ-based)

Product Introduction

At SM Fastners, we understand that not every application fits the limitations of standard fasteners. That’s why we offer precision-engineered custom fasteners manufactured exactly to your specifications, whether it’s a unique thread pitch, special coating, high-strength alloy, or non-standard dimension.

Our advanced manufacturing capabilities—supported by CNC machining, thread rolling, cold forging, laser cutting, and surface finishing—allow us to produce complex, non-standard fasteners with high dimensional accuracy, reliable performance, and complete material traceability.

We serve a wide range of sectors including aerospace, automotive, defense, infrastructure, electronics, and machinery, delivering high-quality, certified, and production-ready parts for demanding industrial needs.

What We Can Customize

We collaborate with your design and production teams to create tailor-made fasteners that solve your unique challenges:

✔️ Dimensions

  • Custom length, head types, or thread combinations
  • Tolerances up to ±0.01 mm (machined components)


✔️ Threads

  • Metric / Imperial / Trapezoidal / ACME / Buttress
  • Left-hand / right-hand / double thread types


✔️ Head Styles

  • Hex, Socket, Button, Pan, Flat, Round, Torx, T-Head, Slotted
  • Anti-tamper and drive-restricted heads


✔️ Material

  • Carbon steel, alloy steel, stainless steel (A2, A4, B7, 17-4PH)
  • Brass, bronze, aluminum, titanium, plastic, nylon


✔️ Surface Finish

  • Zinc plated, Black oxide, Dacromet, HDG, PTFE, Xylan, Anodized
  • Coating thickness certification on request


✔️ End Configurations

  • Chamfered, tapered, pointed, domed, drilled, or knurled ends


✔️ Marking / Packaging

  • Laser marking, batch coding, QR labeling
  • Custom packaging: kits, pouches, foam trays, etc.

Applications

Custom fasteners are used when off-the-shelf components cannot meet structural, environmental, or mechanical constraints. These are common in:

  • Automotive & EV – Fasteners for chassis, engine blocks, e-mobility frames, and battery modules.
  • Aerospace & Defense – Precision-machined bolts, clips, and inserts for wings, fuselage panels, and interiors.
  • Machinery & Equipment – Custom clamps, pins, and adjustment bolts for assembly lines and production units.
  • Electronics & Telecom – Micro-sized screws and spacers for enclosures, circuit boards, and tower mounts.
  • Infrastructure Projects – Custom anchor bolts and embed plates for bridges, rail, metro, and airport projects.
  • Renewable Energy – Tailored studs and bolts for solar trackers, turbine towers, and inverter mounts.

Technical Overview

Size Range
M2 to M100 | Lengths: 4 mm to 1000 mm
Thread Types
Metric, UNC, UNF, BSW, Trapezoidal, Custom
Head Styles
Hex, Socket, Button, Pan, Flat, Custom CNC
Materials
Steel, SS 304/316, Brass, Titanium, Nylon
Surface Finishes
Zinc, HDG, PTFE, Dacromet, Black Oxide, Polished
Strength Range
400 MPa to 1200 MPa (Tensile Strength)
Heat Treatment
Case Hardened, Through Hardened, Annealed
Compliance
ISO 898-1, ASTM A193/A307, RoHS, DFARS
Drawing Formats
PDF, DWG, STEP, SolidWorks
Packaging
Bulk, Custom Kits, Barcode/QR Labeled Bags

Why Choose SM Fastners for Custom Fasteners?

🔩 100% Customization — Materials, Finish, Threads, Tolerances

⚙️ In-house CAD support & sampling before production

🧪 Dimensional, chemical, and tensile testing reports supplied

🔁 Short run batches or long-term mass production

🌐 Fast global export service with full documentation

🔍 NDA & confidential design protection for client IP

Packaging & Delivery

We handle small and bulk shipments with great care to ensure your custom parts arrive exactly as ordered:

  • Foam tray, blister pack, or VCI polybag options
  • Barcode labeling or QR-based batch tracking
  • Fumigated wooden crates for export
  • Express delivery available for prototype parts
  • ISPM-15 certified pallets + export invoices & HS code tagging

Industries We Serve

✈️ Aerospace & Aviation

🚘 Automotive & E-Mobility

🏭 Industrial Machinery & Automation

📡 Telecom & Electronics

🛡️ Defense & Military

🌱 Renewable Energy & Solar

🧪 Pharma & Chemical Plants

🚧 Civil Infrastructure & Construction

 

Documentation Supplied

  • Material Test Certificate (EN 10204 3.1)
  • Dimensional Inspection Report
  • Heat Treatment & Hardness Report
  • Coating Thickness Certificate
  • Country of Origin / RoHS / REACH Compliance
  • Drawing Approval + Final Production Sign-off

Request a Custom Fastener Quote

Have a drawing, idea, or sample? Let us help you manufacture a precisely engineered fastener tailored for your project.

📧 Email: susheel@smfastners.com
📞 Call: +91 8968469570
💬 WhatsApp: Click to Chat

We’ll respond quickly with feasibility, pricing, tooling timelines, and shipping details.

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